Simrad HB2 datagram format
Simrad HB2 is a proprietary datagram format created by Kongsberg Discovery. It provides the vertical distance from the headrope to the footrope (opening), and from the headrope to the bottom (height). It is used for the second trawl in a dual trawl system. The heights are measured by an ITI TrawlEye or a height sensor.
Format
@IIHB2,x.x,M,y.y,M<CR><LF>
Description
1 IITalker identifier
2 HB2Datagram identifier
3 x.x,MThis is the distance (height) from the headrope to the footrope. (0 ‑ 100 m)
4 y.y, MThis is the distance (height) from headrope to bottom (seabed). (0 ‑ 100 m)
Tip
The information from the sensor on the first trawl is provided in the Simrad HFB datagram.